Bitmain Antminer S21 Immersion (227Th)
Bitmain Antminer S21 Immersion (227Th) vs Bitaxe GT
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Bitmain Antminer S21 Immersion (227Th) | Specification | Bitaxe GT |
|---|---|---|
| 227.0 TH/s | Taux de hachage | 5.0 TH/s |
| 3,623 W | Consommation électrique | 75 W |
| 16.0 J/TH | Efficiency | 15.0 J/TH |
| 75 dB | Niveau de bruit | 42 dB |
| 17.2 kg | Weight | 0.4 kg |
| 12,362 BTU/hr | BTU Output | 256 BTU/hr |
| 30/100 | Home Mining Score | 64/100 |
| — | Release Year | — |
| SHA-256 | Algorithme | SHA-256 |
| Bitmain | Manufacturer | D-Central |
Profitability Comparison
Bitmain Antminer S21 Immersion (227Th)
Bitaxe GT
Based on BTC price of $63,875 and current network difficulty as of Jun 4, 2026. Actual results vary.
Verdict
Our scoring model gives the nod to the Bitaxe GT, which leads on 4 of 6 weighted factors (efficacité, consommation électrique, score de minage domestique, niveau sonore). The standout gap is 98% better power draw (3,623.0 vs 75.0 W) in the Bitaxe GT's favour. That said, the Bitmain Antminer S21 Immersion (227Th) isn't beaten everywhere — it still wins hashrate and rapport qualité-prix. Review the detailed specs and profitability calculations above to determine which miner best fits your specific setup.
Spec Deltas
The Bitmain Antminer S21 Immersion (227Th) and Bitaxe GT diverge on the metrics below — each gap expressed as a real percentage, not a vague "better":
- Bitmain Antminer S21 Immersion (227Th) 4440% more hashrate (227.0 vs 5.0 TH/s)
- Bitaxe GT 98% better power draw (3,623.0 vs 75.0 W)
- Bitaxe GT 6% better efficacité (16.0 vs 15.0 J/TH)
- Bitaxe GT 44% better noise (75.0 vs 42.0 dB)
- Bitaxe GT 98% better weight (17.2 vs 0.4 kg)
- Bitmain Antminer S21 Immersion (227Th) 4731% more heat output (12,362 vs 256 BTU/hr)
- Bitaxe GT 113% more score de minage domestique (30.0 vs 64.0)
Cost & ROI Over Time
Hardware cost is only half the story — here is how each miner's upfront price plays out against cumulative profit at a $0.10/kWh rate.
| Bitmain Antminer S21 Immersion (227Th) | Metric | Bitaxe GT |
|---|---|---|
| $3,269 | Upfront cost (MSRP) | $499 |
| -$2.14 | Daily net profit | -$0.04 |
| -$4,048 | Net after 1 year | -$512 |
| -$4,828 | Net after 2 years | -$525 |
| -$5,607 | Net after 3 years | -$538 |
| Does not pay back at current rates (negative daily profit) | Payback period | Does not pay back at current rates (negative daily profit) |
Projections assume continuous operation, a flat $0.10/kWh rate, and no hardware degradation, pool fees, or BTC price change. Real-world ROI varies.
Best For...
Best for Profitability
TieBoth miners produce similar daily profit.
Best for Home Mining
Bitaxe GTScore: 64/100. 42 dB noise level.
Best for Efficiency
Bitaxe GT15.0 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Is the Bitmain Antminer S21 Immersion (227Th) or Bitaxe GT more profitable?
At the current BTC price and a $0.10/kWh electricity rate, the Bitaxe GT is more profitable at $-0.04/day compared to $-2.14/day for the Bitmain Antminer S21 Immersion (227Th). Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Bitmain Antminer S21 Immersion (227Th) vs Bitaxe GT: which runs at a lower noise level?
The Bitaxe GT is quieter at 42 dB compared to the Bitmain Antminer S21 Immersion (227Th) at 75 dB. For home mining, lower noise levels make a significant difference in livability.
For mining at home, should I pick the Bitmain Antminer S21 Immersion (227Th) or the Bitaxe GT?
The Bitaxe GT scores 64/100 on our Home Mining Score (vs 30/100 for the Bitmain Antminer S21 Immersion (227Th)). This composite score factors in noise, power requirements, heat output, size, and setup ease — all critical for residential mining.
Bitmain Antminer S21 Immersion (227Th) vs Bitaxe GT: how much does the efficiency gap matter?
The Bitmain Antminer S21 Immersion (227Th) runs at 16.0 J/TH while the Bitaxe GT runs at 15.0 J/TH — a difference of 1.0 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 6% better efficacité (16.0 vs 15.0 J/TH).
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